Overview

Threaded brass inserts guaranteed not to rust. Made from solid brass. Size listed is the size of the internal machine threads. Sold in packs of 8. Can be installed with screwdriver, threaded insert wrench (sold separately) or threaded insert power drive (sold separately).

Solid brass threaded insert is easy to install. Drill a hole the same size as body insert. Diameter permits the use of machine screws and bolts instead of wood screws. Drive with 3/8" x 3/64" flatblade screwdriver or with threaded insert wrench (#48629). For additional strength, install with epoxy glue. Brass inserts have different external dimensions as the steel inserts with the same internal thread size

What's included

(1) 8-Pack of Threaded Brass Inserts

Technical Details

Item #33183- 1/4"- 20 Threaded Brass Inserts:

Pilot Hole: 3/8'' Wide

Width with threads: 15/32''

Thread Height: 5/16''

Overall Height: 1/2''

Item #33191- 5/16" -18 Threaded Brass Inserts:

Pilot Hole: 1/2'' Wide

Width with threads: 19/32''

Thread Height: 3/8''

Overall Height: 5/8''

Item #71589 - 3/8" - 16 Threaded Brass Inserts:

Width with threads: 19/32''

Overall Height: 5/8''

Product Warnings

WARNING This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/product

I use these inserts on the bottle stoppers that I make. I use a 9/16" drill as they go into hardwood. Tapped threads in end grain do not hold well. These inserts are strong and will not corrode. I do not use a screwdriver to insert them. I use a bolt and put them in with a wrench.

Not sure yet but it looks like the threads are finer than the ones you can get from lowes or homedepot. exotic woods that splinter easy will not take construction grade brass inserts with out problems.

I use these inserts on the bottle stoppers that I make. I use a 9/16" drill as they go into hardwood. Tapped threads in end grain do not hold well. These inserts are strong and will not corrode. I do not use a screwdriver to insert them. I use a bolt and put them in with a wrench.

Not sure yet but it looks like the threads are finer than the ones you can get from lowes or homedepot. exotic woods that splinter easy will not take construction grade brass inserts with out problems.

Interesting. I agree that a larger hole is needed in hardwood, but the piece of paper in the bag with my inserts only listed 1/2" and they were nearly impossible to drive. I eventually used a 13mm bit (0.512") and that seemed to do the trick. I didn't have a 9/16" bit. My SAE drill kits all stop at 1/2".

Interesting. I agree that a larger hole is needed in hardwood, but the piece of paper in the bag with my inserts only listed 1/2" and they were nearly impossible to drive. I eventually used a 13mm bit (0.512") and that seemed to do the trick. I didn't have a 9/16" bit. My SAE drill kits all stop at 1/2".

Just saw a video that says the slotted end should go in first as it's there to help cut the threads and not for a slotted screwdriver. Is that true?

A shopper
on Jun 13, 2015

Threaded Brass Inserts - Select size

Steel Threaded Inserts - Select size

BEST ANSWER:I would say NO! If the slotted end went in first, How do you screw it in? Also, they sale an installation tool that uses the slot. I made my own tool by using a correct size bolt and a lock nut to secure it to the insert. The use a wrench or nut drive to install the insert.

BEST ANSWER:I would say NO! If the slotted end went in first, How do you screw it in? Also, they sale an installation tool that uses the slot. I made my own tool by using a correct size bolt and a lock nut to secure it to the insert. The use a wrench or nut drive to install the insert.

I saw this video as well, and tried his way, slotted end down. Made a jig with a bolt and two nuts. The insert went in flawlessly, after I had spent an hour experimenting by using a screwdriver. The insert took about ten seconds using the slot down method.

We are installing a fireplace mantel. I would like to have some threaded inserts at the bottom were permenantly in place. Then during the holidays I can screw in a cup hook or similar to hang stockings. Would this product work for this application? Thank you.

I want to use a hook like this or even an eye bolt I could hook onto. But I want to remove them when not in use. I'm afraid of running these straight into the wood and repeatedly backing them out. That's why I wated some sort of insert. Maybe I am thinking this out all wrong???

no you're right to not wanting to insert the hooks in and out of the wood. just look for swag hooks with the short piece of threaded screw. then match those threads to the brass inserts and install those brass inserts into the mantel and so the swag can be then added and removed easily. the hooks could be painted white or any color of choice to match the occasion.

I want to use a hook like this or even an eye bolt I could hook onto. But I want to remove them when not in use. I'm afraid of running these straight into the wood and repeatedly backing them out. That's why I wated some sort of insert. Maybe I am thinking this out all wrong???

no you're right to not wanting to insert the hooks in and out of the wood. just look for swag hooks with the short piece of threaded screw. then match those threads to the brass inserts and install those brass inserts into the mantel and so the swag can be then added and removed easily. the hooks could be painted white or any color of choice to match the occasion.

Insertion with a flat blade screwdriver is problematic. The brass top buckles or breaks off. Better to use thetorqued double nut on a bolt threaded through the insert.I use them to locate an adjustable router fence base which accepts different fences. Got the job done! Will use in future, but install them with the torqued double nut method.

The finish is fair at best. Do yourself a favor and don't try to screw these in with a flathead screw driver. They strip out way too easy. Taking the advice of another woodworker, I torqued two nuts together toward the bottom of a quarter inch bolt and then used that to drive in the insert. It worked much better than the flathead screw driver. I give it a 3 simply because they should have never included the flathead feature since it's pretty much useless.

I use these Threaded Brass Insert in my shop to make jigs for my machine tools as well as many other project. They are easy to install and are built to withstand fulltime shop use. I started purchasing this product about five years ago from Rockler. I found some a little less expensive on line elsewhere, but you really get what you pay for. Now I just reorder the inserts from Rockler instead of wasting time trying to find something cheaper on line Been there. Done that. Got the T-shirt. I just stick with good quality and use Rockler inserts when I need them.

Purchased 1/4"-20 threaded inserts to complete the bench I was rebuilding. I pre-drilled a similar piece of hardwood I was to use to check the pilot hole and found the 15/32" hole too big as the insert fell out of it! I then pre-drilled a 13/32" hole. Perfect! I recommend all to use the 13/32" pilot hole.

I put these into oak boards with no problems , tried 2 other companies products but both broke when trying to install , if you want a reliable insert for the job , buy these , great quality product , thanks

A very good quality brass insert at a very reasonable price. I actually use this item in conjunction with my Bottle stoppers. I file down the threads , drill a half-inch hole and countersink into acrylic blanks, Makes it easier to thread onto my chuck,, and also easy to thread the stopper on or off the blank. Jim

I had to install about 20 of them on one project and 70% of them went in without a problem. The other 30% had the nubs ripped of but they were practically in all the way and sanding brought them to be flush. The screws worked perfectly in each and they did the job. I installed them with a cordless impact driver and I thought that was best tool to use.

I built a lectern for my wife's 7th grade classroom and used your slide glides to level the feet. They are adjusted up and down via the brass threaded inserts. The only problem I had was one insert went in crooked even though I used the arbor on my drill press to install them. This did not affect the performance, however, so no harm, no foul.

The product is excellent except every package of 1/4-20 inserts includes from 1-3 8-24 inserts instead of the 1/4-20 inserts.. I had to order more than needed to fill the order. They did give me a refund on the wrong parts so all worked out but it was an inconvenience.

Our price is lower than the manufacturer's "minimum advertised price." As a result, we cannot show you the price in catalog or the product page.

You have no obligation to purchase the product once you know the price. You can simply remove the item from your cart.

Our price is lower than the manufacturer's "minimum advertised price." As a result, we cannot show you the price in catalog or the product page.

You have no obligation to purchase the product once you know the price. You can simply remove the item from your cart.

What People are Saying:

I have been using Rockler for years, your products are always the best that can be purchased and your prices are very reasonable. Ann you have always done your best to make me feel as though I was your very best customer. Thank you for great service."

- Daniel F.

What People are Saying:

I have been using Rockler for years, your products are always the best that can be purchased and your prices are very reasonable. Ann you have always done your best to make me feel as though I was your very best customer. Thank you for great service."